Elisha barlow



l LIEN! A u u UNITED STATES PATENT QFFICE.

ELISHA BARLOW, kOF MARIETTA, OHIO.

PUMP.

Specification of Letters Batent No. 5,462, dated February 29, 1848.

To all whom t may concern Be it known that I, ELIsHA BARLow, of Marietta, in the county of IVashlngt-on, in

the State of Ohio, have made a new and useful Improvement in the Manner of Constructing Sucking and Forcing Pumps for the Raising of Vater; and I do hereby declare that the following is a full and Aexact description thereof.

My pump consists of an outside case that is nearly triangular, and that contains within it a chamber of nearly the same form. The piston consists of a rectangular plate, hung on pivots at its upper end, and made to vibrate in the segment of a circle, by means of a brake in the ordinary way.

Figure l, of the accompanying drawing is a vertical section of my pump through its middle in the plane of its parallel sides. A, A, A', are the inclined sides and segmental bottom thereof. B, B', is one of the flat plates, constituting the parallel sides between which the rectangular piston C, C, is to vibrate. The distance of these plates from each other does not bear any necessary proportion, to the distance of the inclined sides A, A, or the general size of the pump. D, is a cylindrical shaft to which the rectangula-r valve C, is made fast, and on the gudgeons 0f which it vibraties; E, E, 1s a brake or handle, by which the piston may be vibrated.

Fig. 2, is a vertical section through the pump in the line m of Fig. l. F, F, are the gudgeons upon which the piston C, is made to vibrate. The peculiarity of this piston consists in the manner of causing the clack valve G, to perform the office of a double valve, serving to force the water that has been admitted on either side of the piston to pass up to the discharge pipe I-I, through the mortise, or opening I, which forms a water way in the cylinder D; and at the same time to operate as a sucking pump on the opposite side. This cylinder D, is made to lit closely to the case at the points J, J, where it may, if desired be secured by packing. I sometimes form the valve C, C, of two plates embracing between them the packing K, rendering the valve water tight at its lower edges and sides, or it may be secured in otherways.

The operation of this pump is as follows, L, is a descending main, leading into the well or reservoir, and furnlished with a end of the clack valve G, is received within the mortise I, and if the water is being raised into the chamber on the side B, it will occupy the position in which itV is represented in Fig. l, and the water on the opposite side will be forced up through the opening I, and into the discharge pipe H.

This pump may be readily converted into a stationary fire pump of great power; and

this has been actually effected. For this purpose the brake E, Fig. 2, is to be made to fit on to both the gudgeons of the cylinder D, and may be made to ship and unship; the brake in this case may consist of several bars like those in use on re engines.

The addition of an air vessel will under these circumstances be readily made by obvious means.

Having thus fully described the manner l in which I construct my improved sucking and forcing pump, I do not make claim to anything in the general construction of said pump as new; but

IVhat I do claim as new, and desire to secure by Letters Patent, is

The particular manner herein set forth of arranging the clack valve G, so that it shall serve equally to operate, simultaneously, in the sucking, or raising the water, filling that section of the chamber from which it is moving, and forcing the water up from the opposite side of Said chamber, as herein fully made known.

ELIsHA BARLovv, i

Witnesses:

TI-Ios. P. JoNEs, LEM WILLIAMS, 

